The correct answer is "dust storms".
First of all, rain, unless it is acid rain, is not a source of pollution although it is a natural phenomena. Pesticides and fossil fuels both cause pollution but they are a man-made phenomena not natural. Dust storms produce pollution in the air by swifting dust rendering the air almost unhabitable. This is a natural occurence and at the same time, pollutes.
These profiles provide direct information about nucleotide sequences. DNA fingerprinting or DNA profiling is a method of isolating and identifying variable elements within the base pair sequence of DNA. DNA profiling relies on microsatellites rather than the minisatellites used in DNA fingerprinting. Microsatellites, or short tandem repeats (STRs), are the shorter relatives of minisatellites usually two to five base pairs long.
Show them and I would be more then happy to help you out.
A is the answer. You would need soil with different amounts- including no amount- to determine how the fertilizer affects the plants
Since you are measuring the height a ruler would be a good idea as well.
Answer:
Thus, the correct answer is 'Carbon dioxide, water, and sunlight'.
